From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph showing the results of a retardation test for a Phantom III Park Ward Saloon at Brooklands.
| Identifier | ExFiles\Box 155\1\ scan0324 | |
| Date | 29th June 1937 | |
| To Rm{William Robotham - Chief Engineer} FROM Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} CURVE No.2. 32 EX. PHANTOM III. PARK WARD CLOSE COUPLED SALOON. WEIGHT OF CAR AS TESTED 5978 LBS. RETARDATION TESTS AT BROOKLANDS 29-6-37 WEATHER DRY, STRONG WIND, AIR TEMP. 16°C. CURVE SHOWING RETARDATION COASTING IN NEUTRAL. TIMED SPEED IN M.P.H. SECONDS. | ||